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United States Patent | 5,129,315 |
Burwell ,   et al. | July 14, 1992 |
An apparatus for forming an array of extruded filaments combines an extrusion head having an opening, a movable body having an array of a plurality of apertures aligned with the opening for forming an array of filaments of material extruded through the opening and the apertures, and a support positioned for receiving the extruded array of filaments. The apertured body is moved continuously beneath the extrusion head opening so that a plurality of apertures are positioned simultaneously underneath the opening and in contact with the extruded material and an array of filaments is continuously formed. Relative motion of the support with respect to arrays of filaments forms a lattice structure of superimposed arrays.
Inventors: | Burwell; Malcolm C. (Cambridgeshire, GB2); Murphy; Pauline E. (York, GB2); Neill; David I. (Norfolk, GB2); Sayer; Peter J. (Gwynedd, GB7) |
Assignee: | Nestec S.A. (Vevey, CH) |
Appl. No.: | 545284 |
Filed: | June 27, 1990 |
Oct 02, 1987[GB] | 8723201 | |
Oct 02, 1987[GB] | 8723202 |
Current U.S. Class: | 99/450.2; 99/450.1; 99/494; 425/6; 425/131.1 |
Intern'l Class: | A23P 001/00 |
Field of Search: | 99/494,450.1,450.2,450.6,450.7,353-355 425/131.1,131.5,133.1,376 R 426/89,94,503,620 |
2979764 | Apr., 1961 | Andrew | 425/6. |
4004035 | Jan., 1977 | Hirzel et al. | 99/450. |
4275647 | Jun., 1981 | Chambers et al. | 426/284. |
4279579 | Jun., 1981 | Froeschke | 425/6. |
4559000 | Dec., 1985 | Froeschke | 425/6. |
4563358 | Jan., 1986 | Mercer et al. | 426/89. |
4859165 | Aug., 1989 | Hoashi | 425/133. |
4878425 | Nov., 1989 | Butcher et al. | 99/450. |
4900572 | Feb., 1990 | Repholz et al. | 99/450. |